scholarly journals Bio-Mediated Synthesis of Nanoparticles for Fluorescence Sensors

2021 ◽  
pp. 155-184
Keyword(s):  
Green Synthesis ◽  
Driving Force ◽  
Active Role ◽  
Environmentally Benign ◽  
Hazardous Chemicals ◽  
Biogenic Synthesis ◽  
Fluorescence Sensors ◽  
Synthesis Of Nanoparticles

The nature deeds alike a hefty “bio-laboratory” embracing of plants, algae, fungi, yeast etc. which are poised of biomolecules. These indeed befalling biomolecules must stood notorious to play an active role in the establishment of nanoparticles through diverse shapes and sizes thus acting as a driving force intended for the scheming of greener, safe and environmentally benign protocols for the synthesis of nanoparticles. The contemporary chapter targets the proportional biogenic synthesis and mechanisms of nanoparticles using biomolecules. The practice of biomolecules not only diminishes the price of synthesis but also curtails the need of using hazardous chemicals and arouses ‘green synthesis’. It also emphases on aspects of binding of biomolecules to nanoparticles and certain of the applications of the biosynthesized nanoparticles as sensor for cations, anions and also biosensors.

scholarly journals Biogenic Green Synthesis of Nanoparticles from Living sources with Special Emphasis on Their Biomedical Applications

2021 ◽  
Author(s):  
Gulzar Ahmed Rather ◽  
Anima Nanda ◽  
Arghya Chakravorty ◽  
Saima Hamid ◽  
Johra Khan ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Biomedical Applications ◽  
Cost Effective ◽  
Advanced Technology ◽  
Human Cell Lines ◽  
Physical Processes ◽  
Biogenic Synthesis ◽  
Preparation Methods ◽  
Synthesis Of Nanoparticles ◽  
Clear Idea

Abstract Nanobiotechnology has been achieved great significance in terms of nanomedicine & many others. But the first challenge in nanobiotechnology science is the preparation of stable nanoparticles. Presently, many preparation methods have been developed like different chemical & physical processes, but the main drawbacks of these processes are required hazardous chemicals, environmental impact, and ultimately expenses a lot. To overcome these challenges another advanced technology has been developed, which is termed green or biogenic synthesis. This review is discussing the modern approaches of the eco-friendly and cost-effective methodology of green synthesis of nanoparticles by using different eukaryotic & prokaryotic agents like plants, human cell lines, diatoms, algae, fungi, bacteria, viruses, and other organisms. Also, this review gives a clear idea of the different applications of those nanoparticles in drug delivery, dentistry, labeling, diagnostics & sensors.

scholarly journals Regioselective, one-pot, multi-component, green synthesis of substituted benzo[c]pyrazolo[2,7]naphthyridines

RSC Advances ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 5938-5950 ◽  
Author(s):  
Abida Ashraf ◽  
Zahid Shafiq ◽  
Khalid Mahmood ◽  
Muhammad Yaqub ◽  
Waqar Rauf
Keyword(s):  
Green Synthesis ◽  
Environmentally Benign ◽  
One Pot

An efficient and environmentally benign synthetic protocol has been developed for the synthesis of benzo[c]pyrazolo[2,7]naphthyridine derivatives through regioselective multi-component “on-water” reaction of isatin, malononitrile and 3-aminopyrazole.

scholarly journals Optimization of Green Synthesis of Silver Nanoparticles from Leaf Extracts ofPimenta dioica(Allspice)

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Akshay Rajeev Geetha ◽  
Elizabeth George ◽  
Akshay Srinivasan ◽  
Jameel Shaik
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Leaf Extract ◽  
Synthesis Method ◽  
Leaf Extracts ◽  
Synthesis Of Nanoparticles ◽  
Hot Air ◽  
Vis Spectroscopy ◽  
Pimenta Dioica ◽  
First Time

Production of silver nanoparticles from the leaf extracts ofPimenta dioicais reported for the first time in this paper. Three different sets of leaves were utilized for the synthesis of nanoparticles—fresh, hot-air oven dried, and sun-dried. These nanoparticles were characterized using UV-Vis spectroscopy and AFM. The results were diverse in that different sizes were seen for different leaf conditions. Nanoparticles synthesized using sun-dried leaves (produced using a particular ratio (1 : 0.5) of the leaf extract sample and silver nitrate (1 mM), resp.) possessed the smallest sizes. We believe that further optimization of the current green-synthesis method would help in the production of monodispersed silver nanoparticles having great potential in treating several diseases.

scholarly journals Green synthesis of nanoparticles from microbes and their prospective applications

Nanomaterials ◽  
2021 ◽  
pp. 283-298
Author(s):  
Chidambaram Kulandaisamy Venil ◽  
Rajamanickam Usha ◽  
Ponnuswamy Renuka Devi
Keyword(s):  
Green Synthesis ◽  
Synthesis Of Nanoparticles

scholarly journals Green synthesis of 2-aryl-4-phenyl-quınazolıne derıvatives promoted by lactıc acıd

2017 ◽  
Vol 36 (2) ◽  
pp. 223 ◽  
Author(s):  
Belgheis Adrom ◽  
Nourallah Hazeri ◽  
Malek Taher Maghsoodlou ◽  
Mojtaba Lashkari ◽  
Maryam Fatahpour
Keyword(s):  
Lactic Acid ◽  
Reaction Time ◽  
Green Synthesis ◽  
Ammonium Acetate ◽  
Simple Procedure ◽  
Environmentally Benign ◽  
Synthetic Method ◽  
Short Reaction Time ◽  
Quinazoline Derivatives ◽  
Work Up

An environmentally benign three-component synthetic method is described for the construction of 2-aryl-4-phenylquinazoline derivatives from the reaction between aldehydes, ammonium acetate, and 2-aminobenzophenone in the presence of lactic acid in a solvent-less media. The benefits of the reaction were good yields, a simple procedure, simple starting materials short reaction time, easy work-up, and cleaner reaction profiles.

scholarly journals The Biological methods of selenium nanoparticles synthesis, their characteristics and properties

2020 ◽  
pp. 6-20
Author(s):  
O. Tsehmistrenko
Keyword(s):  
Metal Ions ◽  
Green Synthesis ◽  
Alternative Energy ◽  
Extracellular Polymeric Substances ◽  
Crop Yields ◽  
Production Optimization ◽  
Total Charge ◽  
Coating Agent ◽  
Synthesis Of Nanoparticles ◽  
Biological Methods

Nanotechnologies have an impact on every sphere of life, change approaches to environmental recovery, introduce new methods of disease analysis and prevention, treatment, drug delivery and gene therapy, affect the provision of environmentally friendly alternative energy sources, increase crop yields, animal and poultry productivity. Physical, chemical, biological methods of synthesis of nanoparticles, selenium in particular, their properties and the factors participating in reduction of metal ions to nanoparticles are considered. Limitations of nanoparticle synthesis inherent in the biological method (identification and isolation of bioactive fragment responsible for biomineralization of metal ions, analysis of ways to develop individual nanoparticles) and factors contributing to the intensification of nanoparticle production (optimization of pH, temperature, contact time, mixing degree) changes in the total charge of functional organic molecules on the cell wall). It has been proved that these factors affect the size, morphology, composition of nanoparticles and their efficiency during the synthesis. The model of green synthesis with the use of physicochemical means and their biomedical applications have been summarized. There are organisms used for the synthesis of NPs - terrestrial and marine bacteria, bacterial extracellular polymeric substances as bioreductants, fungi, yeast, algae, viruses, microorganisms. It has been demonstrated the biochemical ways of microorganisms in order to fight the toxicity of metals during the synthesis of nanoproducts and the factors that determine the toxicity of metals that are converted into nanoparticles (size, shape, coating agent, nanoparticle density and type of pathogen). The biological role of selenium and features of its influence on an organism in a nanoscale scale are shown. Key words: nanotechnologies, nanoselenium, bacteria, green synthesis, enzymes.

Prospects of algae-based green synthesis of nanoparticles for environmental applications

Chemosphere ◽  
2022 ◽  
pp. 133571
Author(s):  
Fahad Khan ◽  
Ayesha Shahid ◽  
Hui Zhu ◽  
Ning Wang ◽  
Muhammad Rizwan Javed ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Environmental Applications ◽  
Synthesis Of Nanoparticles
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